Add Generic entity field

Closes #3514270

src/Plugin/Derivative/CustomEntityFieldSourceDeriver.php

+<?php
+
+namespace Drupal\ui_patterns\Plugin\Derivative;
+
+use Drupal\Component\Plugin\PluginBase;
+use Drupal\Core\Plugin\Context\ContextDefinition;
+
+/**
+ * Provides Plugin for every field property of type ui_patterns_source.
+ */
+class CustomEntityFieldSourceDeriver extends EntityFieldSourceDeriverBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getDerivativeDefinitionsForEntityStorageField(string $entity_type_id, string $field_name, array $base_plugin_derivative): void {
+    $id = implode(PluginBase::DERIVATIVE_SEPARATOR, [
+      $entity_type_id,
+      $field_name,
+    ]);
+    $field_type = $this->entityFieldsMetadata[$entity_type_id]["field_storages"][$field_name]["metadata"]["type"];
+    $target_field_types = $base_plugin_derivative['metadata']['parent_plugin_definition']['metadata']['field_type'] ?? [];
+    if (in_array($field_type, $target_field_types)) {
+      $this->derivatives[$id] = array_merge(
+        $base_plugin_derivative,
+        [
+          "label" => $base_plugin_derivative['metadata']['parent_plugin_definition']['label'],
+          "id" => $id,
+          "tags" => array_merge($base_plugin_derivative["tags"], $target_field_types),
+        ]);
+      $field_storage_data = $this->entityFieldsMetadata[$entity_type_id]["field_storages"][$field_name];
+      $bundle_context_for_properties = (new ContextDefinition('string'))
+        ->setRequired()
+        ->setLabel("Bundle")
+        ->addConstraint('AllowedValues', array_merge($field_storage_data["bundles"] ?? [], [""]));
+      $this->derivatives[$id]["context_definitions"]["bundle"] = $bundle_context_for_properties;
+    }
+
+  }
+
+}
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